Blocked for new applications / Für Neuanwendung gesperrt

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1 locked for new pplictions / Für Neunwendung gesperrt RE /05.02 Replces: 02.0 roportionl directionl vlve, pilot operted with electricl position feedbck ype 4WRKE Nominl sizes 0 to 35 Series 3 Mximum operting pressure 3 br Mximum flow 3000 L/min H//D 652/99 ype 4WRKE /6EG24...K3/ D3... with integrted control electronics Overview of contents Contents ge Fetures Ordering detils 2 referred types 3 Symbols (simplified) 3 Symbols (detiled) 4 Function, section 4 nd 5 echnicl dt 6 Electricl connections 7 lock circuit digrm / connection lloction for the 8 integrted control electronics Chrcteristic curves 9 to 4 rnsient function Flow-commnd vlue function Unit dimensions 5 to 9 ilot oil supply 20 Fetures ilot operted 2-stge proportionl directionl vlve Vlve for the control of the size nd direction of flow ctution vi proportionl solenoids For subplte mounting: orting pttern to DIN form, ISO 440 nd CEO- R2H (NS 0 to 32), subpltes to ctlogue sheets RE to RE (seprte order), see pges 5 to 8 Electricl position feedbck Spring centred min spool Single stge proportionl directionl vlve pilot control Min stge with closed loop position control Integrted control electronics 2002 by osch Rexroth G, Industril Hydrulics, D-9783 Lohr m Min ll rights reserved. No prt of this document my be reproduced or stored, processed, duplicted or circulted using electronic systems, in ny form or by ny mens, without the prior written uthoristion of osch Rexroth G. In the event of contrvention of the bove provisions, the contrvening prty is obliged to py compenstion. his document ws prepred with the gretest of cre, nd ll sttements hve been exmined for correctness. his document is subject to ltertions for reson of the continuing further developments of products. No libility cn be ccepted for ny incorrect or incomplete sttements. 4WRKE /20 RE /02.0

2 locked for new pplictions / Für Neunwendung gesperrt Ordering detils 4WRKE / 6E G24 K3/ D3 * Electriclly operted 2-stge proportionl directionl vlve of 4-wy design with integrted electronics Nominl size 0 = 0 Nominl size 6 = 6 Nominl size 25 = 25 Nominl size 32 = 32 Nominl size 35 = 35 Symbols 0 b 0 b b 0 b With symbols E-, W8-: : q Vmx : q V /2 : q V /2 : q Vmx With symbols R; R3: : q Vmx : q V /2 : q Vmx /2 : q Vmx Note: With the spools W6, W8 nd R3 there is connection from to nd to in the zero position with pprox. 2 % of the pplicble nominl cross-section. = E = E- = E3- = W6- = W8- = R = R3- = E ) = W6 = E ) = W6 Further detils in cler text M = 6) NR sels V = 6) FKM sels D3 = With pressure reducing vlve ZDR 6 D0-4/40M-W80 (fixed settings) Interfces 5) = Commnd/ctul vlue ± 0 V F = Commnd/ctul vlue 4 to 20 m Electricl connections K3 = Without plug-in connector with component plug to E DIN M6 lug-in connector seprte order, see pge 7 ilot oil supply nd drin No code = Externl pilot oil supply, externl pilot oil drin E = Internl pilot oil supply, externl pilot oil drin E = Internl pilot oil supply, internl pilot oil drin = Externl pilot oil supply, internl pilot oil drin Supply voltge G24 = + 24 V DC 6E = roportionl solenoid with removble coil 3 = Series 30 to 39 (30 to 39: unchnged instlltion nd connection dimensions) 3H = High Flow version only for NS 25 with nominl flow of 0 L/min Chrcteristic curve form L = Liner = Liner with fine control rnge Nominl flow in L/min t 0 br vlve pressure differentil 25 = 2) or = 3) or 00 = Nominl size 0 25 = 3) or 200 = Nominl size = 3) or 3 = or 0 = 4) Nominl size = or 600 = Nominl size = Nominl size 35 ) Exmples: Spool in switched position ( ) ordering detil..e.. or W6 Spool in switched position b ( ) ordering detil..e.. or W6 2) E, W6 only vilble with chrcteristic curve form L (liner) 3) E, W8 only vilble with chrcteristic curve form L (liner) 4) High Flow version (only for NS 25) 5) When replcing the series 2 with series 3 the electricl interfce is to be defined with 5 (enble signl t in C) 6) For comptible fluids see pge 6 RE /02.0 2/20 4WRKE

3 locked for new pplictions / Für Neunwendung gesperrt referred types NS 0 Mteril No. ype WRKE 0 EL-3/6EG24EK3/D3M WRKE 0 W6-L-3/6EG24EK3/D3M WRKE 0 W8-L-3/6EG24EK3/D3M WRKE 0 E00L-3/6EG24EK3/D3M WRKE 0 E-00L-3/6EG24K3/D3M WRKE 0 W6-00L-3/6EG24EK3/D3M WRKE 0 W8-00L-3/6EG24K3/D3M NS 6 Mteril No. ype WRKE 6 E200L-3/6EG24EK3/D3M WRKE 6 E-200L-3/6EG24K3/D3M WRKE 6 W6-200L-3/6EG24EK3/D3M WRKE 6 W8-200L-3/6EG24EK3/D3M NS 32 Mteril No. ype WRKE 32 E600L-3/6EG24K3/CD3M WRKE 32 W6-600L-3/6EG24EK3/D3M NS 35 Mteril No. ype WRKE 35 E000L-3/6EG24EK3/D3M WRKE 35 W6-000L-3/6EG24EK3/D3M NS 25 Mteril No. ype WRKE 25 E3L-3/6EG24EK3/D3M WRKE 25 E-3L-3/6EG24K3/D3M WRKE 25 W6-3L-3/6EG24EK3/D3M WRKE 25 W8-3L-3/6EG24K3/D3M Symbols (simplified) ype 4WRKE 3 G 0 b ype 4WRKE 3 E. G 0 b ype 4WRKE 3 E. G 0 b ype 4WRKE G 0 b 4WRKE 3/20 RE /02.0

4 locked for new pplictions / Für Neunwendung gesperrt Symbols (detiled) Exmple: ilot control vlve type 4WR 6 2 Min vlve 3 ressure reducing vlve type ZDR 6 D0-4/40M-W80 4 Integrted electronics 3 b b G Externl pilot oil supply, externl pilot oil drin Function, section ilot control vlve type 4WR 6 W7.3/G24 (st stge) he pilot control vlve is direct operted proportionl vlve. he control edge geometrics were designed nd optimised for the use s pilot control vlve for the proportionl directionl vlves type 4WRKE. he proportionl solenoids re pressure tight, oil-immersed DC solenoids with removble coil. hey convert n electricl current proportionlly into mechnicl force. n increse in the current strength cuses n ppropritely higher solenoid force. he set solenoid force remins constnt over the entire control stroke. he pilot control vlve bsiclly consists of the housing (), proportionl solenoids (2 nd 3), vlve spool (4) nd springs (5 nd 6). In the de-energised condition both ctutor ports re connected to the tnk. If one of the two solenoids (2 or 3) is energised, then the solenoid force moves the vlve spool (4) ginst the spring (5 or 6). Once the overlp re is overcome, the connection to tnk of one of the two ctutor ports is blocked nd the connection to the pressure chmber is estblished. here is flow from to the control chmber of the min stge ype 4WR 6 W7.3/G24 RE 29075/ / /20 4WRKE

5 locked for new pplictions / Für Neunwendung gesperrt Function, section he type 4WRKE vlves re 2-stge proportionl directionl control vlves. hey control the size nd direction of flow. he min stge is closed loop position controlled so tht the spool position is lso independent of flow forces t lrger flows. he vlve bsiclly constists of the pilot control vlve (), housing (8), min spool (7), covers (5 nd 6), centering spring (4), inductive position trnsducer (9) nd the pressure reducing vlve (3). If no input signl is being pplied, then the min spool (7) is held in the centre position by the centering spring (4). he two control chmbers in the covers (5 nd 6) re connected vi the vlve spool (2) to the tnk. he min spool (7) is connected to suitble control electronics vi the inductive position trnsducer (9). he positionl chnge of the min spool (7) s well s the ltertion of the commnd vlue t the summtion point of the mplifier produces differentil voltge. With the commnd vlue/ctul vlue comprison possible control devition is recognised vi the electronics nd n electricl current is pplied to the proportionl solenoid of the pilot vlve (). he current induces, within the solenoid, force which is pssed on to the solenoid pin which in turn ctutes the control spool. he flow which is provided vi the control cross-sections cuses the min spool to move. he min spool (7) with the ttched core of the inductive position trnsducer (9) is moved until the ctul vlue is equl to the commnd vlue. In the controlled condition the min spool (7) is force blnced nd is held in this controlled position. Spool stroke nd control opening chnge in proportionl to the commnd vlve. he control electronics re integrted into the vlve. y mtching the vlve nd the electronics the spred of the series units is kept low. revent the tnk lines from emptying; with pproprite instlltion conditions, bck pressure vlve is to be instlled (bck pressure pprox. 2 br) ype 4WRKE 0 3 he overlp is symmetriclly fctory pre-set. With the zero point trimmer, it is possible to correct nd in reltionship to ech other. 4WRKE 5/20 RE / /02.0

6 locked for new pplictions / Für Neunwendung gesperrt echnicl dt (for pplictions outside these prmters, plese consult us!) NS 0 NS 6 NS 25 NS 25 ) NS 32 NS 35 Generl Instlltion nd commissioning guidelines Optionl, preferbly horizontl, see RE Storge temperture rnge C 20 to + 80 mbient temperture rnge C 0 to + Weight kg Hydrulic (mesured t p = 00 br, with HL46 t 40 C ± 5 C) Operting ilot control vlve ilot oil supply br 25 to 35 pressure Min vlve, ports,, br Up to 35 Up to 3 Up to 3 Up to 20 Up to 3 Up to 3 Return pressure ort ilot oil drin, internl br Sttic < 0 (pilot vlve) ilot oil drin, externl br Up to 35 Up to 2 Up to 2 Up to 20 Up to 2 Up to 2 ort br Sttic < 0 (pilot vlve) Nominl flow q Vnom ± 0 % t p = 0 br L/min 25 p = vlve pressure differentil Flow of min vlve (mx. permissible) L/min ilot oil flow t ports or with step form of input signl from 0 to 00 % (35 br) L/min ressure fluid Minerl oil (HL, HL) to DIN ) hosphte ester (HFD-R) 3) Degree of contmintion Mximum permissible degree of filter with minimum contmintion of the pressure fluid retention rte of is to NS 638. β x = 75 is recommended ilot control vlve Clss 7 x = 5 Min vlve Clss 9 x = 5 ressure fluid temperture rnge C 0 to 80, preferbly 40 to Viscosity rnge mm 2 /s 20 to 380, preferbly 30 to 45 Hysteresis % Response sensitivity % 0.5 Electricl Vlve protection to DIN 40 0 Voltge type Signl type I65 with ssembled nd locked plug-in connector DC nlogue ower, mx. W 72 (verge = 24 W) Electricl connections With component plug to E DIN M6 lug-in connector to E DIN F6-3-g 4) lug-in connector to E DIN F6-3/g3,5 4) Control electronics Integrted into the vlve dditionl electronic components nlogue commnd vlue module V-SWM--/... See RE nlogue commnd vlue module V-SWMK--/... See RE nlogue commnd vlue crd V-SWK--/... See RE Digitl commnd vlue crd V-SWKD--/... See RE 30 2 ) ype 4WRKE H/... (High Flow version) 2) Suitble for NR nd FKM sels 3) Only suitble for FKM sels 4) Seprte order Note: For detils regrding the environmentl simultion test covering EMC (electro-mgnetic comptibility), climte nd mechnicl loding see RE U (declrtion regrding environmentl comptibility). RE / /02.0 6/20 4WRKE

7 locked for new pplictions / Für Neunwendung gesperrt Electricl connections, plug-in connector lug-in connector lug-in connector to E DIN F6-3-g Seprte order under Mteril No (plstic version) For pin lloctions see block circuit digrm on pge 8 9 Ø27 F Ø6,5 Ø C D E lug-in connector lug-in connector to E DIN F6-3-g3,5 Seprte order under Mteril No (metl version) For pin lloction see block circuit digrm on pge 8 mx. Ø28,8 mx. 67 Ø8 2 Component plug lloction Contct Signl Supply voltge 24 VDC (8 to 35 VDC); I mx =.5 ; impulse lod 3 Ref. (ctul vlue) C Ref. potentil for ctul vlue (contct F) 0 V Differentil mplifier input D ± 0 V or 4 20 m (commnd vlue) E 0 V ref. potentionl Mesurement output (ct. vlue) F ± 0 V or 4 20 m E Connected with cooling body nd vlve housing Commnd vlue: Ref. potentil t E nd positive commnd vlue t D results in flow from to nd to Ref. potentil t E nd negtive commnd vlue t D results in flow from to nd to Connection cble: Recommendtion: Up to 25 m cble length type LiC 7 x 0.75 mm 2 Up to m cble length type LiC 7 x.0 mm 2 Externl dimeter: 6.5 to mm (plstic plug-in connector) 8 to 2 mm (metl plug-in connector) Connect screen to only on supply side. Note: Electricl signls (e.g. ctul vlue or enble signls) tken vi vlve electronics must not be used to switch off the mchine sfety functions! (his is in ccordnce with the regultions to the Europen stndrd Sfety requirement of fluid technology system nd components hydrulics, EN 982!) 4WRKE 7/20 RE / /02.0

8 locked for new pplictions / Für Neunwendung gesperrt lock circuit digrm / connection lloction of the integrted control electronics for type 4WRKE D E C F Com. vlue Switch-on current limittion 8 V 35 V Outputs U U +/ 0 V I U +/ 0 m I U 4-20 m +/ UMW +/ UM MO +/ Uref Voltge monitoring Enble Output ref. U U +/ 0 V I U 4-20 m Logic bis current = Dither Switch-off controller Monitoring is current Controller is current Output stge switch-off = Oscilltor Cble brek recognition Zero point Current controller = U I Output stge U I Output stge U I Solenoid Solenoid osition trnducer min stge RE / /02.0 8/20 4WRKE

9 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (vlid for or from with 5 br pressure drop) Vlid for ll of the stted spool symbols E...; WE... nd R... Spool with chrcteristic curve L 00 Spool with chrcteristic curve Flow in % Flow in % ,25 57,5 78,75 00 Commnd vlue in % 5 36,25 57,5 78,75 00 Commnd vlue in % 4WRKE 9/20 RE / /02.0

10 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (mesured t p S = 00 br, with HL46 t 40 C ± 5 C) NS 0 rnsient function with step form of electricl input signl 00 Signl chnge in % Stroke in % ime in ms Flow-lod function t mximum vlve opening (tolernce ± 0 %) Flow in L/min Vlve pressure differentil in br = Recommended flow limittion (flow velocity 30 m/s) RE / / /20 4WRKE

11 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (mesured t p S = 00 br, with HL46 t 40 C ± 5 C) NS 6 rnsient function with step form of electricl input signl 00 Signl chnge in % Stroke in % ime in ms Flow-lod function t mximum vlve opening (tolernce ± 0 %) 400 Flow in L/min = Recommended flow limittion (flow velocity 30 m/s) Vlve pressure differentil in br 4WRKE /20 RE / /02.0

12 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (mesured t p S = 00 br with HL46 t 40 C ± 5 C) NS 25 rnsient function with step form of electricl input signl Signl chnge in % Stroke in % ime in ms Flow-lod function t mximum vlve opening (tolernce ± 0 %) H 0 Flow in L/min = Recommended flow limittion (flow velocity 30 m/s) H = High Flow version Vlve pressure differentil in br RE /02.0 2/20 4WRKE

13 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (mesured t p S = 00 br with HL46 t 40 C ± 5 C) NS 32 rnsient function with step form of electricl input signl 00 Signl chnge in % Stroke in % ime in ms Flow-lod function t mximum vlve opening (tolernce ± 0 %) 600 Flow in L/min = Recommended flow limittion (flow velocity 30 m/s) Vlve pressure differentil in br 4WRKE 3/20 RE /02.0

14 locked for new pplictions / Für Neunwendung gesperrt Chrcteristic curves (mesured t p S = 00 br with HL46 t 40 C ± 5 C) NS 35 rnsient function with step form of electricl input signl Signl chnge in % Stroke in % ime in ms Flow-lod function t mximum vlve opening (tolernce ± 0 %) Flow in L/min = Recommended flow limittion (flow velocity 30 m/s) Vlve pressure differentil in br RE / / /20 4WRKE

15 locked for new pplictions / Für Neunwendung gesperrt Unit dimensions: NS 0 (dimensions in mm) b 94 8 b ,5 2 52, ,5, 7,9 6,9 0,0/00mm R 4 mx Required surfce finish of mting piece Subpltes to ctlogue sheet RE nd vlve fixing screws must be ordered seprtely. Subpltes: G 534/0 (G 3/4) G 535/0 (G 3/4) with ports nd G 536/0 (G ) with ports nd Vlve fixing screws: 4 off M6 x 45 DIN ; M =4 Nm For sectionl drwing see pge 20 ilot control vlve 2 lug-in connector "", colour grey 3 lug-in connector "", colour blck 4 Spce required to remove the plug-in connector 5 Cbling 6 lug-in connector (plstic version) to E DIN F6-3/g, seprte order, see pge 7 7 ressure reducing vlve 8 Nme plte 9 Min vlve 0 Integrted control electronics Sme sel rings for ports,,, 2 Sme sel rings for ports nd 3 Mchined vlve mounting surfce, position of the ports to DIN form, ISO 440 nd CEO-R2H 4WRKE 5/20 RE / /02.0

16 locked for new pplictions / Für Neunwendung gesperrt Unit dimensions: NS 6 (dimensions in mm) b 204 b Ø ,0/00mm 2 R 4 mx 94 Required surfce finish of mting piece Subpltes to ctlogue sheet RE nd vlve fixing screws must be ordered seprtely. Subpltes: G 72/0 (G 3/4) G 74/0 (G ) G 72/02 (M27 x 2) G 74/02 (M33 x 2) Vlve fixing screws: 2 off M6 x 60 DIN ; M = 4 Nm 4 off M0 x 60 DIN ; M = 68 Nm ilot control vlve 2 lug-in connector "", colour grey 3 lug-in connector "", colour blck 4 Spce required to remove the plug-in connector 5 Cbling 6 lug-in connector (plstic version) to E DIN F6-3/g, seprte order, see pge 7 7 ressure reducing vlve 8 Nme plte 9 Min vlve For sectionl drwing see pge 20 0 Integrted control electronics Sme sel rings for ports,, nd 2 Sme sel rings for ports nd 3 Mchined vlve mounting surfce, position of the port to DIN form, ISO 440 nd CEO-R2H 4 Locting pin RE / /02.0 6/20 4WRKE

17 locked for new pplictions / Für Neunwendung gesperrt Unit dimensions: NS 25 (dimensions in mm) b H b H Ø6 4 4 L3 L2 L L ,0/00mm 4 R 4 mx 2 Required surfce finish of mting piece Subpltes to ctlogue sheet RE nd vlve fixing screws must be ordered seprtely. Subpltes: G 5/0 (G ) G 54/0 (G /4) G 56/0 (G /2) Vlve fixing screws: 6 off M2 x 60 DIN ; M = 30 Nm ilot control vlve 2 lug-in connector "", colour grey 3 lug-in connector "", colour blck 4 Spce required to remove plug-in connector 5 Cbling 6 lug-in connector (plstic version) to E DIN F6-3/g, seprte order, see pge 7 7 ressure reducing vlve 8 Nme plte For sectionl drwing see pge 20 9 Min vlve 0 Integrted control electronics Sme sel rings for ports,, nd 2 Sme sel rings for ports, 3 Mchined vlve mounting surfce, position of the ports to DIN form, ISO 440 nd CEO-R2H 4 Locting pin 4WRKE 7/20 RD RE / / /02.0

18 locked for new pplictions / Für Neunwendung gesperrt Unit dimensions: NS 32 (dimensions in mm) ,5 424, , Ø ,0/00mm R 4 mx Required surfce finish of mting piece 257 Subpltes to ctlogue sheet RE nd vlve fixing screws must be ordered seprtely. Subpltes: G 57/0 (G /2) G 57/02 (M48 x 2) G 58/0 (flnge) Vlve fixing screws: 6 off M20 x 80 DIN ; M =430 Nm ilot control vlve 2 lug-in connector "", colour grey 3 lug-in connector "", colour blck 4 Spce required to remove the plug-in connector 5 Cbling 6 lug-in connector (plstic version) to E DIN F6-3/g, seprte order, see pge 7 7 ressure reducing vlve 8 Nme plte For sectionl drwing see pge 20 9 Min vlve 0 Integrted control electronics Sme sel rings for ports,, nd 2 Sme sel rings for ports, 3 Mchined vlve mounting surfce, position of the ports to DIN form, ISO 440 nd CEO-R2H 4 Locting pin RE / / /20 4WRKE

19 locked for new pplictions / Für Neunwendung gesperrt Unit dimensions: NS 35 (dimensions in mm) , b b , ,8 97 Ø , ,5 20,5 76,2 47, , ,0/00mm R 4 mx Required surfce finish of mting piece 4,3 4,3 320 Vlve fixing screws 6 off M20 x 00 DIN ; M = 430 Nm must be ordered seprtely. For sectionl drwing see pge 20 ilot control vlve 2 lug-in connector "", colour grey 3 lug-in connector "", colour blck 4 Spce required to remove the plug-in connector 5 Cbling 6 lug-in connector (plstic version) to E DIN F6-3/g, seprte order, see pge 7 7 ressure reducing vlve 8 Nme plte 9 Min vlve 0 Integrted control electronics Sme sel rings for ports,, nd 2 Sme sel rings for ports, 3 Mchined vlve mounting surfce with position of the ports 4 Locting pin 4WRKE 9/20 RE / /02.0

20 locked for new pplictions / Für Neunwendung gesperrt ilot oil supply ype 4WRKE -3/ ilot oil supply externl ilot oil drin externl In this type the pilot oil supply is from seprte pilot pressure circuit (externl). he pilot oil drin is not into the port of the min vlve but seprtely into tnk vi port (externl). ype 4WRKE -3/ E ilot oil supply internl ilot oil drin externl In this type the pilot oil supply is from the port of the the min vlve (internl). he pilot oil drin is not into the port of the min vlve but seprtely into tnk vi port (externl). ort must be plugged in the subplte. NS 0 Sectionl digrm, see pge 5 ressure reducing vlve Section Section b b Min vlve os. nd 2: lug M6 DIN /F 2 ype 4WRKE -3/ E ilot oil supply internl ilot oil drin internl In this type the pilot oil supply is from the port of the min vlve (internl). he pilot oil drin is directly into the port of the min vlve (internl). ort must be plugged in the subplte. ype 4WRKE -3/ ilot oil supply externl ilot oil drin internl In this type the pilot oil supply is from seprte pilot pressure circuit (externl). he pilot oil drin is directly into the port of the min vlve (internl). ort must be plugged in the subplte. NS 6 Sectionl digrm, see pge 6 Section Min vlve Section b b Cover ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: 2 closed (section b b) internl: 2 open ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: closed (section b b) internl: open NS 25 Sectionl digrm, see pge 7 Section Cover Min vlve ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: 2 closed (section b b) internl: 2 open NS 35 Sectionl digrm, see pge 9 Section Section b b 2 Min vlve ilot control vlve 2 NS 32 Sectionl digrm, see pge 8 2 ilot oil supply externl: closed internl: open ilot oil drin externl: 2 closed internl: 2 open Section b b ressure reducing vlve Min vlve ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: 2 closed (section b b) internl: 2 open osch Rexroth G Industril Hydrulics D-9783 Lohr m Min Zum Eisengießer D-9786 Lohr m Min elefon / 8-0 elefx / elex emil documenttion@boschrexroth.de Internet osch Rexroth Limited Cromwell Rod, St Neots, Cmbs, E9 2ES el: / Fx: / E-mil: info@boschrexroth.co.uk he dt specified bove only serve to describe the product. No sttements concerning certin condition or suitbility for certin ppliction cn be derived from our informtion. It must be remembered tht our products re subject to nturl process of wer nd geing. RE / /20 4WRKE